Pouring attachment for cans



5. J. KRANN'AK POURING ATTACHMENT FOR CANS Aug. 6, 1940.

Filed May 25, 1959 Patented Aug. 6, 1940 PATENT oFi-"lciz POURING ATTACHMENT FOR CANS Steven J. Krannak, Minneapolis, Minn., assignor to Min-A-Max Company, Minneapolis, Minn., a corporation of Minnesota Application May 25, 1939, Serial No. 275,616

3 Claims.

My present invention provides an extremely simple and improved pouring device or spout attachment for oil cans and like liquid containing receptacles, and generally stated, consists of the novel devices, combination of devices and arrangement of parts hereinafter described and defined in the claims.

Particularly the invention is directed to oil cans, or the like, which are provided in their tops with pouring spouts having removable caps. In such cans the caps are usually applied to the pouring spouts by threaded engagement.

My improved device, as preferably designed, involves a tubular spout extension sleeve to which is attached a discharge tube and an air inlet or venting tube. The spout extension sleeve is provided with a transverse diaphragm to which both the discharge tube and the air inlet tube are applied. The lower end of the extension sleeve is threaded to fit the threaded pouring spout or neck of the can, when the customary cap is removed from the can; and the outer or upper portion of said extension sleeve is threaded to correspond to the thread of the can spout, so that the removed cap can then be applied to the outer end of the extension sleeve.

The discharge tube, which is preferably flexible, is adapted normally to be pressed into the can and within the extension sleeve, so that it will be enclosed by the applied cap. The venting tube, however, may be rigidly attached to the diaphragm of the extension tube, and is preferably provided with a-check valve.

Referring to the drawing which illustrates the invention and wherein like characters indicate like parts throughout the several views:

Fig. 1 is a perspective showing the invention applied to a commercial oil can, or the like;

Fig. 2 is a vertical section taken through the can and its discharge or pouring spout, some parts being broken away and some parts being shown in full;

Fig. 3 is a section taken on the .same line as Fig. 2 but showing the dischargetube of the attachment pulled out or extended;

Fig. 4 is a fragmentary view corresponding very much in the line of its section to Fig. 3; and

Fig. 5 is a side elevation showing the attachment involving my invention removed from the can.

Referring first to the preferred structure illustrated in Figs. 1 to 5 inclusive, the numeral III indicates the can, the top of which is provided with the customary threaded pouring spout II to adapted to be applied, and will usually be applied, before my attachment has been applied to the. can.

The extension sleeve l3, like the spout of the can and its'pouring neck, is preferably of pressed or stamped sheet metal and is provided with a thin metal diaphragm l4 secured therein preferably by the spinning operation. The discharge tube I5 is preferably of the rolled flexible metal type and at its receiving end is formed with a slightly tapered section l6 that is frictionally engageable with the correspondingly tapered annular neck or seat I! formed on the diaphragm [4, when the tube I5 is drawn outward as shown in Fig. 3. The said tube l5, however, is adapted to be telescoped into the neck and can as shown in Fig. 2 when out of use and at such time the cap I2 may be applied to the outer end of the extension tube l3 as shown in Fig. 2.,

The air inlet or venting tube I8 is secured and depends from the diaphragm i4 and will always be extended into the can, when the extension tube I3 is applied. As best shown in Fig. 4, the diaphragm I4 is provided with a depressed axially perforated boss 14a: and within the upper end of the airtube I8 is an axially perforated pocket 19 that-holds in place a check valve 20 which, as shown, is a light metal cup-like member.

The extensible discharge pipe or tube l5, as indicated, is of the spirally interlocked and twisted flexible metallic type. At its outer end this tube is provided with a stop collar l 5a. that limits the movement of the tube into the can.

When the can is to be used to contain gasoline, for example, to supply to outboard motors or the like, straining of the gasoline is important and hence I have shown a strainer 2| attached to a U-shaped spring fork 22 (see Figs. 3 and 4). The outturned ends of the fork 22 will engage the inner ribs of the tube or discharge pipe I5 and securely hold the strainer in position against accidental displacement. Preferably a pliable gasket 23 is inserted between the diaphragm I4 and the underlying inturned annular flange of the tube ll.

Broadly considered the diaphragm I 4 serves as a bearing or base plate for connecting the discharge tube and the air intake or breathing tube.

As already indicated, Fig. 2 shows my improved pouring device applied to the pouring tube of the can proper and the cap l2 applied to close up the can and prevent the escape of liquid, even when the can is turned upside-down. -When the liquid is to be poured from the can, the cap I! which the cap I2, of conventional construction is must of course, be removed and then W charge tube I! can be drawn out as shown in Figs. 1 and 3 so that liquid can be poured from the can and delivered to the proper place of discharge. This can is very well adapted for use es an emergency can for gasoline or for the delivery of lubricating oil for automobiles and hence it is, of course, very desirable that the discharge pipe be flexible. In the pouring of the liquid from the can, it there should be a tendency of the oil or liquid to be discharged through the air tube l8, the valve 20 would close and prevent such discharge, thereby limitingthe discharge from the can to flow through the discharge or delivery pipe or tube.

Fig. 5 shows a complete attachment removed from a can and in a condition to be sold Ior use on commercial cans of standard construction.

From the foregoing, it is evident that the applicants pouring attachment takes care not only of the pouring-out action, but also of the airintake action, and hence adapts the device for use on any can having a customary or suitable discharge spout. The air' intake is, of course. necessary to permit a free pouring action. In the applicant's drawing, the complete device for accomplishing the above results is shown in detail in Fig. 5. The check valve in the air-intake tube makes it impossible for the fluid content of the can, under any conditions, to run out through the air intake port, but with the air-intake tube extended to a very considerable and proper extent, the check valve may, in many instances, be omitted.

' What I claim is:

1. A pouring attachment for liquid containers involving a disc-like base plate, and a discharge tube and an air intake tube both attached to said base plate and simultaneously applicable to the container by application of said base plate to the container, said discharge tube being slidably extensible through said base plate, said air-intake tube having an inwardly opening check-valve.

2. A pouring attachment for liquid containers involving a disc-like base plate, and a discharge tube and an air intake tube both attached to said base plate and simultaneously applicable to the container by application of said base plate to the container, said discharge tube being slidably extensible through said base plate, and said air intake tube being rigidly secured to said base plate, and having an inwardly opening check valve.

3. A pouring attachment for liquid containers involving a sleeve-like spout extension having a transverse diaphragm, said spout extension being applicable to the pouring spout or container, a discharge tube and an air intake tube both attached to and opening through said diaphragm, said discharge tube being slidably extensible through said diaphragm, and a cap applicable to STEVEN J. 

